Warp stop-motion for looms.



PATENTBD JAN. 1, 1907.

J. BIM. WARP STO-P MOTION FOR LOOM APPLIOATION FILED JAN. 10. 1905.

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.I. 0 9 1 1 F D E T N n A P M I B WARPSTOP MOTION FOR LOOMS.

APPLICATION FILED JAN. 10, 1905.

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* UNITED srArns PATENT orrron.

JOSEF BIM, VIENNA, AUSTRIA-HUNGARY, ASSIGNOR TO UNION BANK, OF VIENNA, AUSTRIA-HUNGARY.

To all whom, it may concern:

WARP STOP-MOTION FOR LOOIVIS.

Be it known that I, J OSEFBIM, textile engineer, a subject of the Emperor of Austria- Hungary, residing at Vienna, Kolingasse 19,

Austria-Hungary, haveinvented new and useful ImprovementsiflzWarp Stop-Motions fof Looms, of which theifollowing ispaj specr fication. W.

. Th1s inventlon relates to a war st tion for looms by means of which when a break in the warp-threads occurs the drops or detectors carried by the warp-threads sink and hold a feeler-b ar or other check-piece fast, upon which a striker-block, which can come into contact with the knock-off mechanism of the loom, is brought into such a position that it is struck by a bunter seated on the slay, and so brings about the stopping of the loom. In all previous devices of this kind the detector-drops remain in contact with the check-piece or feeler-bar until the loom comes to a standstill, which has for result that the drops are often bent, and consequently unfit for further use.

In order to safeguard the drops as much as possible, the presentinvention provides that as soon as the striker-block comes into contact, upon the breaking of the thread, with the bunter on the slay it brings first the check-pieces or feeler-bars which are held fast by the fallen drops out of engagement with these drops. Only after this action does the striker-block come into the position which brings about the stopping of the loom. One form of the invention is shown in the accompanying drawings, in which Figure 1 is a section through the detectordrop device in connection with the swordarm of the slay. Fig. 2 is an elevation of the striker-block in detail, and Fig. 3 is a sectional elevation of a part of the whole mechanism.

The reciprocating sword-arm 1 ,Fig. 1 of the slay carries with it, by means of a connectinglink 2, an arm 5. The arm 5 is provided with a slot 4, in which a stud 3 of the connectinglink .2 is adjustably fixed. The arm 5 is loosely pivoted on the shaft 11. An arm 8 is firmly secured to the shaft 11 and is Connect- Specification of Lett ers Patent. Application filed January 10. 1905'. Serial No. 240.430.

Patented Jan. 1, 1907.

2, and the arm-i8, by means of the spring 7, and thus' causes the shaft 11 to rock when the said shaft is not securely held in its position of rest. Should this latter be the case, then the arm 5 alone swings back, causing the spring 7 to stretch, while the arm 8 and the s aft 1l remainin their position of rest. As a rule, however, the arm 8 is carried along with arm 5 by means of the spring 7 and returns to its original position, as does also shaft 11, when the arm 5 swings forward. This return of arm 8 is caused by the pin 6 of arm 5 resting against said arm 8.

forked arms 9, equipped with feeler-bars 10, which are moved backand forth under the fixed bars 12 by means of the rock-shaft 11. These feeler-bars constitute a rocking frame having lateral clutching parts. When one of the war threads breaks, the drop belonging to it, w ich rests in the ordinary Way in the frame 13 16 17, sinks down and checks the motion of the feeler-bars 10, and thereby the motion of the shaft 11. The parts or rods 16 may act as lease-rods, as shown in Fig. 1. The rods 16 and 17 acting as guides for the drops 15 and rods 16 acting also as. leaserods for the warps are so employed that the warps which sustain the left-hand drops 15 of Fig. 1 pass above the left-hand rod 16 and the warps which sustain the right-hand drops 15 in Fig. 1 pass above the right-hand rod 16 and the warps which sustain the middle drops sword-arm 1 of'the slay swings back" after this, only the arm 5, by means of the connecting-link 2, is carried along with it and the spring 7 is stretched. In that moment, howchecked the striker-block 24 is in the position shown in Fig. 3. The striker-block is carried in a rocking frame 40, in which it is adapted to slide, and this frame is rocked by an arm 41, which is in turn moved by a link 20. The pivoted frame 40 and arm 41 constitute a carrier for the striker-block. 'T he striker-block 24 possesses a pin 21, which is surrounded by a spiral spring 23, Fig. 2. The spring 23 is tends to press the pin 21 outward into the position shown in Fig. 3.

. An arm 18 is firmly seated on shaft 11 and The shaft 11 carries in the usual way i 15 pass above both the rods 16. When the ever, in which the motion of the shaft 11 is arranged within the rocking frame 40 and 1 1 is ivotally connected, by means of in 19, wit a link 20, while a pin 22 of the ink 20 engages slot-of the carrier of the -striker= block 24. The bunter 25, Fig. 3, comes into contact with the striker-block 24 when the position represented in Fig. 3 is attained and pushes the striker-block24 backward, so that pin 21 of striker-block 24 displaces the crank-lever 3327, that is pivoted'at '26, and through the agency of the connecting linkl28 brings about adisplacement of the knock-off lever 29, whereby the doom is stopped.

Before in 21 is pushed so: far backward by the :stri er-iblock'24-as :to='bring-.about the 'checking: of ithe'loom' the whole intermediate mechanism swings onits pivot in the directi onnof the slay and: by this motion CELIli'GS .the fork: 9 in such manner with it thatthe rock-shaft, having a! yielding connection wherebythemotion of the rock-shaft may be arrested without stopfiingathe slay, a; frame carried bysaid rock-s aft and havingilongi tudinal bars, avseri'es of drops carried by the warp-threadsand adapted: When they fall v to I engagexsaid: bars and temporarily arrest-"the rock-shaft, asknocki-ofi'z idevice; actuatingndevices between the shaft and: knockeoff device and. means for movingsaidrframe andaits bars out of engagement with: the zoperativevdnop whenitheknock-off device has been actuate 2; In alastopi-motionfon looms, the combination of the'slay, a rock-shaft power-trans? mi ttin'gs connections between. the slay androcks-shaft' having a yielding: connection whereby themotion of the rock-shaft maybe anrested'zwithout sto pingtheslay,- intermediate devices control led bythe drops for an resting: the movement .of' therook-shafQ-a :se ries-zof drops carried by the warp-threads, and adapted when; they'fallto arrest said intermediate devices for stop ingLthe rockshaft,thespring-block: 24,.a apted to be=ac+ tuatedabyuthe slay, a-=knock-off device,'-lever devices actuated by the block to operate said knock-off device, and/intermediate,connections between the rock-shaft and eblockf for moving it into position to be actuated by the slay when'theerock-shaft is arrested.

3. Ina stop-motion. for looms thecombination). ofivthe slay, a rock-shaft power+trans mitting connections: between-the slay and rock shaft, having a yielding connection whereby themotion of the rock-shaft maybe arrested without stopping the slay, a frame carried by said rock-shaft and having longitudinalbars having lateral clutching parts, a ser es of drops carried by the warp-threads and adapted when they fall to engage the lateral clutching parts of said bars and temporarily arrest the-rock-shaft, a knock-off device to stop the loom, and actuating devices between the rock-shaft and knock-01f device consisting of aipivotedpart connected 'to the rock-shaft to move'it andrbe'movedcbvitas the case may beduring. its operation, and

means acting on the pivoted'part'to simultaneously operate the knocleoff. device: and rockthei pivotedopart, whereb' the lateral clutching parts of the frame are moved. away {T0111 the-drops in the-act of stoppingthe 4. In; a stop+motion.-. for looms, the combinati on of the -'r slay,- a: rock-shaft,power-trans mittingconnections between saidslay and roclcshaft-,having. a yieldingiconnection wherebythe motionofthe rock-shaft may be arrested Without stoppingtheslay; arseries of drops normally, supported byz'the warps, a movable frame secured to the *rock:- shaft adapted'tmstrikethe drops .whenadrop edifor arre'stingwthe movement at therock-s aft, a knock-off device, and actuatingfdevices -between said rock:-shaft andiknock-off-idevice to actuate the latter when the shaftuis .-.stopped and simultaneouslymovew'the-movable frame away from thedropsn Y 5. In a: SlJOPi-IIlOtiOIIJfOIT looms .thei combination of therslay, arock1-shaft, powen-rtranss mittingz. connections between; the-:- slay and rock:'- shaft, havingavyielding connection whereby themotioni ofthe rock-shaft may be arrested: without stopping. the a. slay, a frame carried- :bysaid rock-shafit and 'havingslongitudihal feel'elr-bans, aseries 015 drops :CELIIiGd by thawarp-threadsand adapted: whemthey fall I to engage said. feeler+bars anido temporarily arrest-the rocki shaft, .aoknook-off de+ vi ce 'andactuatingzdevices between the 'shaft and knocln-ofiI-device(consisting ofdthe'pivoted frame:connect'ed with the rock-shaft so as to rock in unison with it, a striker blockl 24", 21 to operatevthe kIIOOk-QfllldBVlCBj andva bunter to move the striker-bar to operatathe knock-off deviceiand simultaneouslyoscillate therrockshaft to relieve pressure upon the drops bythefeeler-bars.

6a. In a: stoprmoti o'n' for looms theknocks offi devices, and? meansefor-w operating the feeler b'ars': and .movinguthemout 1 of Y1 contact IIO withrthe'dro ssimultaneously with the opers ationi of the nook-off devices consisting. of-ia pivoted frame a: zspringaactuatedarpinz 221 and strikere'block 24,. combined with: the: drops,

the feeler-bars, a movable hunter which si- I In witness whereof Ihave hereunto set my multaneously drives the striker-block and hand in the presence of two Witnesses.

pin forward to operate the knock-0E devices l JOSEF BIM and rocks the pivoted frame, and connecting 1 devices between-the pivoted frame and feeler- Witnesses:

bars for moving the feeler-bars out of contact ERNST RoHNERs, with the drops before the loom is stopped. i O. W. LoBEL. 

